From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4010DC433DF for ; Tue, 16 Jun 2020 16:15:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1E2642071A for ; Tue, 16 Jun 2020 16:15:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="WGIapUiB" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729815AbgFPQP1 (ORCPT ); Tue, 16 Jun 2020 12:15:27 -0400 Received: from userp2120.oracle.com ([156.151.31.85]:47938 "EHLO userp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731515AbgFPPlr (ORCPT ); Tue, 16 Jun 2020 11:41:47 -0400 Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 05GFbS2b087032; Tue, 16 Jun 2020 15:41:26 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=to : cc : subject : from : message-id : references : date : in-reply-to : mime-version : content-type; s=corp-2020-01-29; bh=x71oBn1m/tF2XvIfsUgElKRHW9e1eYOow3P3SFBORSg=; b=WGIapUiBpCyxlkBoDlt61JxsZxduNAh7fVJidJtdsvoZ3HdFLhPvHzSoSOc6TmmCUCN+ buOgpTw4hgWXgcEO/X6M1SmsNObrbyYDZ+lMRghnYxieHUkZKczO396NYsUANV5M/4+w dbWg71YvdDStIX+3FcEuekdlTm0dua7Mi+GYZ3K5QQEozwAxXZ1LEt/qB3OFtVJ+J/Ci eZOop1VVqk3GvcWAbaxASUgn0n4iGGbkDps1kBGM14D3sIudk1BULhTUmsAWWCxYS+IA fMQ5h7s2/cXUwmtvsFpqENb9KNSa7enjvI4OF37M5UrhAN3ajM7bLKiq7dEIkhOmt6LC 3A== Received: from aserp3030.oracle.com (aserp3030.oracle.com [141.146.126.71]) by userp2120.oracle.com with ESMTP id 31p6e5yjjf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 16 Jun 2020 15:41:26 +0000 Received: from pps.filterd (aserp3030.oracle.com [127.0.0.1]) by aserp3030.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 05GFd6ch046602; Tue, 16 Jun 2020 15:41:25 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserp3030.oracle.com with ESMTP id 31p6s7d9b1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 16 Jun 2020 15:41:25 +0000 Received: from abhmp0016.oracle.com (abhmp0016.oracle.com [141.146.116.22]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id 05GFfO13030328; Tue, 16 Jun 2020 15:41:24 GMT Received: from ca-mkp.ca.oracle.com (/10.159.214.123) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 16 Jun 2020 08:41:24 -0700 To: Keith Busch Cc: linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, Damien Le Moal , Matias =?utf-8?Q?Bj=C3=B8rling?= , Christoph Hellwig , Sagi Grimberg , Jens Axboe Subject: Re: [PATCH 1/5] block: add capacity field to zone descriptors From: "Martin K. Petersen" Organization: Oracle Corporation Message-ID: References: <20200615233424.13458-1-keith.busch@wdc.com> <20200615233424.13458-2-keith.busch@wdc.com> Date: Tue, 16 Jun 2020 11:41:21 -0400 In-Reply-To: <20200615233424.13458-2-keith.busch@wdc.com> (Keith Busch's message of "Tue, 16 Jun 2020 08:34:20 +0900") MIME-Version: 1.0 Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9654 signatures=668680 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 malwarescore=0 mlxscore=0 suspectscore=1 mlxlogscore=999 phishscore=0 bulkscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006160110 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9654 signatures=668680 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 adultscore=0 mlxscore=0 phishscore=0 mlxlogscore=999 lowpriorityscore=0 clxscore=1011 suspectscore=1 spamscore=0 bulkscore=0 malwarescore=0 impostorscore=0 cotscore=-2147483648 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006160110 Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Keith, > In the zoned storage model, the sectors within a zone are typically > all writeable. With the introduction of the Zoned Namespace (ZNS) > Command Set in the NVM Express organization, the model was extended to > have a specific writeable capacity. > > Extend the zone descriptor data structure with a zone capacity field to > indicate to the user how many sectors in a zone are writeable. > > Introduce backward compatibility in the zone report ioctl by extending > the zone report header data structure with a flags field to indicate if > the capacity field is available. Reviewed-by: Martin K. Petersen -- Martin K. Petersen Oracle Linux Engineering